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213233041 = 730461863
BaseRepresentation
bin11001011010110…
…10110110010001
3112212020100202001
430231122312101
5414041424131
633054154001
75166310450
oct1455326621
9485210661
10213233041
11aa40115a
125b4b2901
133523b5c8
1420468b97
1513ac0261
hexcb5ad91

213233041 has 4 divisors (see below), whose sum is σ = 243694912. Its totient is φ = 182771172.

The previous prime is 213233039. The next prime is 213233047. The reversal of 213233041 is 140332312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213233041 - 21 = 213233039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213233047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15230925 + ... + 15230938.

It is an arithmetic number, because the mean of its divisors is an integer number (60923728).

Almost surely, 2213233041 is an apocalyptic number.

It is an amenable number.

213233041 is a deficient number, since it is larger than the sum of its proper divisors (30461871).

213233041 is an equidigital number, since it uses as much as digits as its factorization.

213233041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30461870.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 213233041 is about 14602.5011898647. The cubic root of 213233041 is about 597.4269826682.

Adding to 213233041 its reverse (140332312), we get a palindrome (353565353).

The spelling of 213233041 in words is "two hundred thirteen million, two hundred thirty-three thousand, forty-one".

Divisors: 1 7 30461863 213233041